User blog comment:AJP27/Nine Things I'd Like to See in a/the Future Game(s)/@comment-26082987-20150228223707/@comment-26082987-20150301232144

"Resurection (sic) is also something that doesn't happened in DMC. Dead things have stayed dead. Thats why anything that can't be killed is sealed."

Actually, there are two confirmed cases of resurrection have occurred: The first is in DMC1 when Trish (after she was killed by Mundus) was brought back to life by the Perfect Amulet and the second was with Argosax in DMC2. (A potential third example could be Dante himself, whom Hideki Kamiya stated was killed in the attack that cost Eva her life subsequently revived by the Perfect Amulet. Though given the retcons brought about by the Manga and DMC3, that last one is debatable.)

And as for Vergil, him still being around wanting to prove himself as the most powerful Demon can be a mean to its own end. For a comparison, Demona from Greg Weisman's Gargoyles constantly seeking to commit genocide against the Human race for its collective sins and fighting the Manhattan Clan in doing so while they have to fight off other threats, such as the Quarrymen, the Illuminati, and Thailog, doesn't hamper that show and comics continuation quality, so why would Vergil serving a similarly recurring rival role to Dante and his friends and also against new Big Bads inherently be a bad thing? In addition, just as Demona is her own worst enemy, Vergil failing to learn and/or refusing to acknowledge (due to his own pride) that life for one's own sake is meaningless also adds to his flawed, tragic nature.